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Practice Guide to Auditing Mining Revenues and Financial Assurances for Site Remediation


Published Performance Audits on Mining Revenues and Financial Assurances for Site Remediation

Performance auditors in Canada, the United States, Australia, and other resource-rich countries already have some experience in conducting performance audits of revenues from the extraction of minerals and financial assurances for site remediation. A search of our Audit News Database and of other websites has identified 16 performance audits on these topics published since 2008. (Some of these audits have covered both revenues and financial assurances.) Table 1 presents a list of performance audits that examined mining revenues, while Table 2 provides a list of performance audits that examined financial assurances.

Table 1 – Published Performance Audits on Revenues from the Extraction of Minerals

Audit OfficeYearTitle
Vérificateur général du Québec (Office of the Auditor General of Quebec) 2009 Les interventions gouvernementales dans le secteur minier (Government Interventions in the Mining Sector)
Audit Office of New South Wales 2010 Coal Mining Royalties
Office of the Auditor General of Western Australia 2011 Ensuring Compliance with Conditions on Mining
Comptroller and Auditor General of India 2012 Allocation of Coal Blocks and Augmentation of Coal Production, Ministry of Coal
Vérificateur général du Québec (Office of the Auditor General of Quebec) 2013 Suivi – Interventions gouvernementales dans le secteur minier (Follow-up – Government Interventions in the Mining Sector)
Office of the Auditor General of Nova Scotia 2014 Natural Resources: Mineral Resource Management
Office of the Auditor General of Ontario 2015 Mines and Minerals Program
Office of the Auditor General of British Columbia 2016 An Audit of Compliance and Enforcement of the Mining Sector
Source: Data from our Audit News Database and other sites for the period 2008–2016.

Table 2 – Published Performance Audits on Financial Assurances for Mining Site Remediation

Audit OfficeYearTitle
Vérificateur général du Québec (Office of the Auditor General of Quebec) 2009 Les interventions gouvernementales dans le secteur minier (Government Interventions in the Mining Sector)
Auditor-General of South Africa 2009 Report of the Auditor-General to Parliament on a Performance Audit of the Rehabilitation of Abandoned Mines at the Department of Minerals and Energy
Government Accountability Office of the United States of America 2010 Surface Coal Mining – Financial Assurances for, and Long-Term Oversight of, Mines with Valley Fills in Four Appalachian States
Government Accountability Office of the United States of America 2011 Abandoned Mines – Information on the Number of Hardrock Mines, Cost of Cleanup, and Value of Financial Assurances
Office of the Auditor General of Western Australia 2011 Ensuring Compliance with Conditions on Mining
Office of the Auditor General of Canada (Commissioner of the Environment and Sustainable Development) 2012 Financial Assurances for Environmental Risks
Government Accountability Office of the United States of America 2012 Phosphate Mining – Oversight Has Strengthened, but Financial Assurances and Coordination Still Need Improvement
Government Accountability Office of the United States of America 2012 Uranium Mining – Opportunities Exist to Improve Oversight of Financial Assurances
Queensland Audit Office 2014 Environmental Regulation of the Resources and Waste Industries
Office of the Auditor General of Western Australia 2014 Ensuring Compliance with Conditions on Mining – Follow-up
Office of the Auditor General of Nova Scotia 2014 Natural Resources: Mineral Resource Management
Office of the Auditor General of Alberta 2015 Systems to Ensure Sufficient Financial Security for Land Disturbances from Mining
Office of the Auditor General of Ontario 2015 Mines and Minerals Program
Office of the Auditor General of British Columbia 2016 An Audit of Compliance and Enforcement of the Mining Sector
Source: Data from our Audit News Database and other sites for the period 2008–2016.

The focus of these performance audits varied considerably. Some have focused solely on royalties (for example, the 2010 New South Wales audit on coal mining royalties) or on financial assurances for site remediation (for example, the 2015 Alberta audit on systems to ensure sufficient financial security). Other audits have covered one of these issues as part of a larger audit of the sustainable development of a resource sector (for example, the 2009 Quebec audit of government interventions in the mining sector). These audits reflect the range of scoping options available to performance auditors when auditing the mining sector.

In the early planning phase of a new audit, reviewing previously published performance audits and reviewing the work conducted by financial auditors may help audit teams to:

  • complete their list of potential audit issues to examine and
  • identify risk factors that they might not yet have considered.